Hydraulic Actuated with Remote Reset Deluge Valve Deluge systems ADVANTAGES The FDV is a Fire Protection control valve for Deluge fire sprinkler systems, designed for installations in hazardous environments. The FDV-DH1 Deluge system is actuated hydraulically and resets remotely. When the Wet pilot detection line’s automatic fire sprinklers are subjected to flame heat and shatter-open, it enables the FDV control chamber to drain and de-pressurize, opening of the deluge valve and admitting water into the spray sprinkler system. The Deluge system incorporates an emergency valve, bypassing the fire detection system for manual operation. Designed for vertical or horizontal installation, a globe pattern, line pressure operated FDV-DH1 valve features a direct elastomeric diaphragm seal. It has no balancing spring or internal metallic wet components in the valve body. The hydrodynamic pattern design, ensures high flow rates with minimum head loss. Only three parts: body, diaphragm & cover plate, no wet metal spring inside the control chamber Full bore unobstructed Simple reset of the valve to standby position without draining or opening the valve itself, neither closing OS&Y or other valves in the system Open fail safe valve, maintained in stand-by closed position Low maintenance cost: the valve is serviced in-line and only one replaceable part which is long life elastomeric diaphragm Conforms with inspection, Testing and Maintenance Standard of water-based Fire Protection Systems, NFPA 25 • • • • CHARACTERISTICS Hydro-dynamic pattern design ensures high flow rates with minimum head loss The valve trips open automatically upon a gradual release of water pressure from its control chamber. The trip is actuated by a Wet Pilot Line’shydraulic pressure release due to its exposure to flame heat Soft closing upon pressurization of the valve’s control chamber, by line pressure or other independent water source, prevents surges • • • • • FDV - DH1 Fire Protection MARKETS TECHNICAL DATA 41 The FDV-DH1 resets to stand-by close position by pressurizing the Wet Pilot Line. FLUID: Water, Brackish water, Sea water, Foam SIZE RANGE: 40mm to 250mm (1½’’ to 10”) AVAILABLE CONNECTIONS ENDS: Flange * Flange, Groove * Groove, Flange * Groove, Groove * Flange, Thread * Thread PRESSURE NOMINAL: 250 psi (17.2 bar) APPROVALS P.O.G. Marine Airports
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Hydraulic Actuated with Remote Reset Deluge Valve
Deluge systems
ADVANTAGES
The FDV is a Fire Protection control valve for Deluge fire sprinkler systems, designed for installations in hazardous environments. The FDV-DH1 Deluge system is actuated hydraulically and resets remotely. When the Wet pilot detection line’s automatic fire sprinklers are subjected to flame heat and shatter-open, it enables the FDV control chamber to drain and de-pressurize, opening of the deluge valve and admitting water into the spray sprinkler system. The Deluge system incorporates an emergency valve, bypassing the fire detection system for manual operation.Designed for vertical or horizontal installation, a globe pattern, line pressure operated FDV-DH1 valve features a direct elastomeric diaphragm seal. It has no balancing spring or internal metallic wet components in the valve body. The hydrodynamic pattern design, ensures high flow rates with minimum head loss.
Only three parts: body, diaphragm & cover plate, no wet metal spring inside the control chamberFull bore unobstructedSimple reset of the valve to standby position without draining or opening the valve itself, neither closing OS&Y or other valves in the systemOpen fail safe valve, maintained in stand-by closed positionLow maintenance cost: the valve is serviced in-line and only onereplaceable part which is long life elastomeric diaphragmConforms with inspection, Testing and Maintenance Standard of water-based Fire Protection Systems, NFPA 25
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CHARACTERISTICS
Hydro-dynamic pattern design ensures high flow rates with minimum head loss The valve trips open automatically upon a gradual release of water pressure from its control chamber. The trip is actuated by a Wet Pilot Line’shydraulic pressure release due to its exposure to flame heatSoft closing upon pressurization of the valve’s control chamber, by line pressure or other independent water source, prevents surges
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FDV - DH1Fire
Pro
tect
ion
M A R K E T S
T E C H N I C A L D ATA
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The FDV-DH1 resets to stand-by close position by pressurizing the Wet Pilot Line.
FLUID:Water, Brackish water, Sea water, FoamSIZE RANGE:40mm to 250mm (1½’’ to 10”)AVAILABLE CONNECTIONS ENDS:Flange*Flange, Groove*Groove,Flange*Groove, Groove*Flange,Thread*ThreadPRESSURE NOMINAL:250 psi (17.2 bar)
A P P R O VA L S
P.O.G.Marine Airports
Schematic drawing
OPERATION
SET position
Pressurized water in the valve’s control chamber (DL) is trapped by check valve (CV), the closed PA-PTC actuator (PC) and by the closed emergency valve (EU), maintaining the FDV deluge valve (DL) closed.
FIRE situation
When some of the Dry pilot detection line’s automatic fire sprinklers are subjected to flames heat and shatter-open, the pilot detection line depressurizes and the PA-PTC control chamber.The PA-PTC (PC) opens and drains the deluge valve’s control chamber. The FDV deluge valve opens and admits water to the spray sprinklers line.
RESET position
System reset requires the replacement of all of the dry pilot detection Line’s shattered-open automatic fire sprinklers. The detection line is then pressurized, the PA-PTC actuator, to reset it to closed position. The FDV valve control chamber pressurizes as well and the valve closes.